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49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
//
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// FloppyDisc.hpp
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// Clock Signal
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//
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// Created by Thomas Harte on 07/04/2024.
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// Copyright © 2024 Thomas Harte. All rights reserved.
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//
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#pragma once
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#include "../../../Components/1770/1770.hpp"
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namespace Archimedes {
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template <typename InterruptObserverT>
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class FloppyDisc: public WD::WD1770, public WD::WD1770::Delegate {
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public:
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FloppyDisc(InterruptObserverT &observer) : WD::WD1770(P1772), observer_(observer) {
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emplace_drives(4, 8000000, 300, 2);
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set_delegate(this);
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}
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void wd1770_did_change_output(WD::WD1770 *) override {
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observer_.update_interrupts();
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}
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void set_control(uint8_t value) {
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// TODO:
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// b0, b1, b2, b3 = drive selects;
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// b4 = side select;
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// b5 = motor on/off
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// b6 = floppy in use (i.e. LED?);
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// b7 = disc eject/change reset.
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set_drive((value & 0xf) ^ 0xf);
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get_drive().set_head(1 ^ ((value >> 4) & 1));
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get_drive().set_motor_on(!(value & 0x20));
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}
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void reset() {}
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void set_disk(std::shared_ptr<Storage::Disk::Disk> disk, size_t drive) {
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get_drive(drive).set_disk(disk);
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}
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private:
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InterruptObserverT &observer_;
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};
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}
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